CN109245619A

CN109245619A - A kind of mechanical self coupling starter of motor

Info

Publication number: CN109245619A
Application number: CN201811387555.0A
Authority: CN
Inventors: 冷岩; 张卫峰
Original assignee: Beijing Mingri Electrical Equipment Co Ltd
Current assignee: Beijing Mingri Electrical Equipment Co Ltd
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2019-01-18

Abstract

A kind of mechanical self coupling starter of motor, including shell, the movement shaft in portion in the shell is set, the movement handle of shell side is set, the movement cam that the drive bevel gear of movement handle end is set and is arranged in movement shaft, locating wheel, spring back cam and anti-down rotating cam, due to the polymorphic structure and different angle of assembling in movement shaft of movement cam, when motor electric starting device controls line failure and normally cannot start electric motor operation, the mechanical self coupling starter can be acted the self coupling starting that handle completes motor by artificial lift, due to being provided with resilient device, it can prevent maloperation, due to being provided with anti-reverse gear, so that this starter can only start into shelves, due to being provided with the retaining spring of locating slot and locating slot lower part in locating wheel, it can be steady at positioning Fixed reliable positioning, so that this mechanical self coupling starter has stable starting performance and good operating characteristics.

Description

A kind of mechanical self coupling starter of motor

The present invention relates to a kind of low-voltage electrical apparatuses, in particular relate to a kind of mechanical self coupling starter of motor.

Background technique

Under normal circumstances, motor is ad hoc various electric starting devices, such as star-delta starter, self coupling starter etc., Cooperation motor carries out starting work, but in certain Code in Hazardous Special Locations, such as fire pump, once the control route of electric starting device When breaking down and fire pump normal work cannot be started, it is necessary to which mechanical starter is set, to start fire water immediately Pump carries out fire-fighting fire extinguishing work.

Summary of the invention

Once breaking down it is an object of the invention to motor electric starting device and the normal work of motor cannot be started When making, a kind of mechanical self coupling starter is provided, to guarantee that electronic function normally starts work.

In order to achieve the goal above, the technical scheme adopted by the invention is that:

The movement shaft in portion in the shell, setting is arranged in a kind of mechanical self coupling starter of motor, including shell Movement handle in shell side, is arranged in the drive bevel gear of handle end.

Further it is arranged, movement cam, locating wheel, rebound cam and anti-down rotating cam is provided in the movement shaft.

Further setting, the movement cam are disposed with the 1st, the 2nd and the 3rd in the movement shaft, Movement cam described in when installation passes through movement shaft and is fastened in the movement shaft by lock screw, and described 2nd dynamic The plane made on cam is arranged in the same direction with the plane on the 3rd movement cam, and the plane on the 1st movement cam lags behind 90 ° of plane settings on 2nd and the 3rd movement cam, the outer edge surface of the described 1st, the 2nd and the 3rd movement cam directly contact The contactor push rod of the shell side is set, with the open and close of control contactor.

The structure of further setting, 3 movement cams is identical, and outer rim is the isocentric circular arc of radius R13, R29 The concordant profipole of three circular arcs formed with eccentric P (- 9,8), the eccentric arc that radius is R25, in R13, R29 isocentric circular arc Between 73 ° of the second quadrant upper right at it is out-of-the-way be set as planar line, the center point of R13, R29 isocentric circular arc is provided with installation axle Hole.

Further setting, the rebound cam are set as conical cam, and one end is provided with regular polygon axis hole, along axis Hole middle line is sleeved on to the right in the movement shaft, on the shell rear surface of the rebound cam lower part, is provided with resilient Spring arrangement.

Further setting, the rebound cam are set as conical cam, and one end is provided with regular hexagon axis hole, along axis Centerline hole is sleeved in the movement shaft to 8 ° of right avertence, on the shell rear surface of the rebound cam lower part, is provided with Resilient spring arrangement.

Further setting, the anti-down rotating cam are set as incomplete ratchet, the center of the anti-down rotating cam It is provided with regular polygon axis hole, to be sleeved on to the right in the movement shaft along axis hole middle line.

Further setting, the anti-down rotating cam are set as incomplete ratchet, are provided centrally with regular hexagon axis Hole, to be sleeved on along axis hole center line to 8 ° of right avertence in the movement shaft.

Further setting, the locating wheel are provided centrally with regular polygon axis hole, are sleeved in the movement shaft, Locating slot there are three equidistantly being opened in 180 ° of region in the outer rim of the locating wheel, in the lower part of the shell rear surface, locating slot It is provided with retaining spring device.

The mechanical self coupling starter of the motor of the above structure has the beneficial effect that

Once the control line failure of electronic electrical-mechanical self coupling starter and electric motor normal working cannot be started When, the mechanical self coupling starter is mechanically activated by artificial lift movement handle progress immediately, to complete the self coupling of motor Starting works normally electronic function, simultaneously because be provided with resilient device, when movement handle in 90 ° of carry motor There is the resilient characteristic of hommization before reaching the first start bit, maloperation can be prevented, be conducive to this mechanical starting dress The start-up operation set, simultaneously operation handle are provided with anti-down rotating cam among 90 ° of carry the second start bits in motor again, The unidirectional gear teeth on the anti-down rotating cam make this mechanical starter only allow to start into shelves, after allowing to move back shelves It moves, it can be to avoid wrongful start-up operation, due to being provided with the retaining spring of locating slot and locating slot lower part in locating wheel Device, at positioning can reliable and stable positioning, be conducive to manual operation movement handle starting positioning and contactor it is reliable Movement.

Detailed description of the invention

Fig. 1 is overall construction drawing of the present invention；

Fig. 2 is Fig. 1 backside structure figure；

Fig. 3 is the 1st, the 2nd and No. 3 movement cam structure figure in Fig. 1；

Fig. 4 is the 1st, the 2nd and No. 3 movement cam planes structural schematic diagram in Fig. 1；

Fig. 5 is that 7 structure chart of cam is sprung back in Fig. 1；

Fig. 6 is that Fig. 5 springs back 7 Plane Installation schematic diagram of cam；

Fig. 7 is anti-down 8 structure chart of rotating cam of Fig. 1；

Fig. 8 is the anti-down 8 Plane Installation schematic diagram of rotating cam of Fig. 7；

Fig. 9 is 9 structure chart of Fig. 1 locating wheel.

Specific embodiment

Firstly the need of explanation, the term " on ", "lower", "left", "right", " vertical ", "inner", "outside" " second as The orientation or positional relationship of the instructions such as limit " " third quadrant " is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.

In the following, by specific embodiment, the invention will be further described in conjunction with FIG. 1 to FIG. 9.

4 middle part of shell is arranged in as shown in Figure 1, including shell 4 in a kind of mechanical self coupling starter of motor Shaft 401 is acted, the movement handle 5 of shell side is set, the drive bevel gear 501 of movement 5 end of handle is set.

Further it is arranged, movement cam 1,2 and 3, locating wheel 9, rebound cam 7 are provided in the movement shaft 4 and prevents Inverse cam 8.

Further setting, the movement cam 1,2,3 are fastened on described by the positioning and locking screw 102 in three directions Movement shaft 401 on, why the movement cam uses this fixed form, in order to act cam described dynamic Make to finely tune setting angle in shaft.

Further setting, as shown in Figure 1, the movement cam is disposed with the 1st in the movement shaft, the 2 and the 3rd, the structures of 3 movements cam are identical, when installation described in plane 204 on the 2nd movement cam and the 3rd The plane 304 acted on cam is arranged in the same direction, and the plane 104 on the 1st movement cam lags behind the 2nd and the 3rd movement 90 ° of plane settings on cam.

Further setting, as shown in Figure 1, the outer edge surface of the 1st movement cam directly contacts and is arranged in the shell The outer edge surface of the contactor push rod 105 of side, the 2nd movement cam directly contacts the contact that the shell side is arranged in The outer edge surface of device push rod 205, the 3rd movement cam directly contacts the contactor push rod 305 that the shell side is arranged in, The interior survey of the contactor push rod 105,205,305 is provided with compressed spring 106, so that the actuating rod is described in The rotation of movement cam and control action push rod it is flexible, so that the open and close of control contactor, realizes the machine of motor The starting of tool formula self coupling.

As shown in Figure 3, Figure 4, the structure of described 3 movement cams is identical, and outer rim is the concentric circles of radius R13, R29 Arc and bias P (- 9,8), the concordant profipole of three circular arcs of the eccentric arc composition of radius R25, in R13, R29 isocentric circular arc Between 73 ° of the second quadrant upper right at it is out-of-the-way be set as planar line, the center point of R13, R29 isocentric circular arc is provided with installation axle Hole 101 is provided with transition arc R5 at the anastomosis 103 of eccentric arc R15 and isocentric circular arc R29, this is conducive to described Movement cam circle trackslips dynamic.

Further setting, as shown in Fig. 5, Fig. 6, Fig. 2, the rebound cam 7 is set as conical cam, and one end is provided with Regular hexagon axis hole 701, it is convex in the rebound to be sleeved on along axis hole middle line 704 to 8 ° of right avertence in the movement shaft 401 On the back side for taking turns 7 lower cases 4, it is provided with resilient spring arrangement 6.

Further setting, as shown in Figure 7, Figure 8, the anti-down rotating cam 8 is set as incomplete ratchet, described Ratchet outer rim be provided with an only direction rotation the unidirectional gear teeth 802, rest part be tooth root circular arc 803, The anti-down rotating cam 8 is provided centrally with regular hexagon axis hole 801, to be sleeved on institute to 8 ° of right avertence along axis hole middle line 804 In the movement shaft 401 stated

Further setting, as shown in Fig. 9, Fig. 2, the locating wheel 9 is provided centrally with regular hexagon axis hole 901, is sleeved on In the movement shaft 401, equidistantly open in 180 ° of region in the outer rim of the locating wheel 9 there are three locating slot 902, 4 back side of shell, locating slot 902 lower part be provided with retaining spring device 901.

The working procedure of the mechanical self coupling starter of the above invention motor is as follows:

When starter movement handle is in zero-bit, the 1st, the 2nd and the 3rd movement cam is in low level shelves, with it The contactor pusher retracted of contact, contactor disconnect, when acting 90 ° of the handle carry low-voltage positions for entering auto-transformer, 2, No. 3 movement cams enter a high position at this time, and the contactor push rod being in contact with it is released, 2, No. 3 contactor closures, at this time self coupling Transformer, which provides a lower voltage to motor, makes motor start turning acceleration, adds when motor starts at the lower voltage When speed arrives certain speed, handle is acted by the unidirectional gear teeth on anti-down rotating cam by manually gradually carry, 2, No. 3 movements are convex again Wheel will enter low level, and the contactor pusher retracted being in contact with it, 2, No. 3 contactors disconnect, and No. 1 movement cam will be in height Position, No. 1 contactor closure, motor puts into fortune after continuing Acceleration of starting to full speed under the full voltage of auto-transformer at this time Row.

It should be understood that the above embodiment is merely an example for clearly illustrating the present invention, and not to reality The restriction of mode is applied, for those of ordinary skill in the art, can also be made on the basis of the above description other Various forms of variations or variation, there is no necessity and possibility to exhaust all the enbodiments, and extended from this Obvious changes or variations are still in the protection scope of this invention.

Claims

1. a kind of mechanical self coupling starter of motor, including shell, are arranged the movement shaft in portion in the shell, setting exists The drive bevel gear of movement handle end is arranged in the movement handle of shell side；

It is characterized by: being provided with movement cam, locating wheel, rebound cam and anti-down rotating cam in the movement shaft；

The movement cam is disposed with the 1st, the 2nd and the 3rd in the movement shaft, when installation described in movement Cam passes through movement shaft and is fastened in the movement shaft by lock screw, the plane on the 2nd movement cam with Plane on 3rd movement cam is arranged in the same direction, and it is convex that the plane on the 1st movement cam lags behind the 2nd and the 3rd movement 90 ° of plane settings on wheel, the outer edge surface of the described 1st, the 2nd and the 3rd movement cam, which directly contacts, to be arranged in the shell one The contactor push rod of side, with the open and close of control contactor；

The structure of 1st, the 2nd and the 3rd movement cam is identical, and outer rim is the isocentric circular arc and partially of radius R13, R29 The concordant profipole of three circular arcs of the eccentric arc composition of heart P (- 9,8), radius R25, between R13, R29 isocentric circular arc It is out-of-the-way at second 73 ° of quadrant upper right to be set as planar line, the center point of R13, R29 isocentric circular arc is provided with mounting shaft hole.

2. the mechanical self coupling starter of motor according to claim 1, which is characterized in that the rebound cam It is set as conical cam, one end is provided with regular polygon axis hole, to be sleeved on to the right in the movement shaft along axis hole middle line, In the lower part of the shell rear surface, rebound cam, it is provided with resilient spring arrangement.

3. the mechanical self coupling starter of motor according to claim 2, which is characterized in that the rebound cam It is set as conical cam, one end is provided with regular hexagon axis hole, turns to be sleeved on the movement to 8 ° of right avertence along axis hole middle line On axis, on the shell rear surface of the rebound cam lower part, it is provided with resilient spring arrangement.

4. the mechanical self coupling starter of motor according to claim 1, which is characterized in that the anti-turn is convex Wheel be set as incomplete ratchet, the anti-down rotating cam is provided centrally with regular polygon axis hole, with along axis hole middle line to The right side is sleeved in the movement shaft.

5. the mechanical self coupling starter of motor according to claim 4, which is characterized in that the anti-turn is convex Wheel be set as incomplete ratchet, the anti-down rotating cam is provided centrally with regular hexagon axis hole, with along axis hole middle line to 8 ° of right avertence are sleeved in the movement shaft.

6. the mechanical self coupling starter of motor according to claim 1, which is characterized in that the locating wheel center It is provided with regular polygon axis hole, is sleeved in the movement shaft, it is equidistant in 180 ° of region in the locating wheel outer rim Locating slot there are three opening, is provided with retaining spring device in the lower part of the shell rear surface, locating slot.